Raising garden height

[Pinkfizzed]

Hello,
I'm after some cost estimates for raising the height of part of a garden - say a patch of 7m x 2.5m by about 50cm? I'm getting a landscaper to give me an estimate but would be good to have a comparable

My garden is at different heights - one block of level lawn and then a step down to a path and a 1.5m wide bed to the left. I'm looking to extend the level lawn area and redo the fence on that side of the garden. Can attach a diagram if easier. The garden only has side access via my utility so I can imagine not the easiest to bring stuff into.

Thank you.

You might need planning permission to raise it that much height.

I don't think so. I'm only looking to raise a small part of a tiered garden to the height the rest of it is! Not sure why planning permission is needed for that.

The OP is only wanting to raise part of the lower end of the garden to the level of the upper area.

@Pinkfizzed I think cost will depend on whether it needs a solid retaining wall and additional drainage.

Thanks, @thatsawhopperthatlemon I think a retaining wall will be needed. Would that mean I need planning permission?
The fence with my neighbour on the side I'm thinking of raising, is in very poor condition with large gaps at the ground level. It's the neighbour's fence I believe and their garden is at a lower level than mine is. Im going to drop them a note to ask if I can replace the fence, etc. I'm guessing the retaining wall will benefit them as well but i will ask my landscaper. I bought the house a year or so ago so I don't know why a proper wall wasn't put in earlier.

I diasgree. changing the level of the garden, even part of it, will potentially change water flow and drainage runoff to neighbouring properties, particularly as OP says the neighbours are lower already. If you plan to also put a fence on top of the new area or build a retaining wall and a fence that is higher than 2m above the original ground level it will also likely require Planning. You may not require it, but your neighbours could challenge this so a call to your LA planning officer and talking to your neighbours in advance would avoid any issues